Apollonio Barbaro

Apollonio Barbaro (died 13 August 1492) was an assassin hired by Cardinal Orsino Orsini to kill Pope Alexander VI's family at their palace in Rome. Barbaro and another assassin planned to climb into the house with a ladder and slay the Pope's mistress Vannozza dei Cattanei, his daughter Lucrezia Borgia, and his son Joffre Borgia, but Micheletto Corella (a third would-be assassin, who defected to the House of Borgia) killed the other assassin and slit Barbaro's throat as Cesare Borgia held Barbaro at sword point.